private IScreenItem Paste_Actual(
RelativePosition Rltv, ISectionHeader ToSectionHeader, int ToIndex = -1)
{
int toIndex = ToIndex;
IScreenItem lastPasteItem = null;
if (ToIndex >= 0)
{
lastPasteItem = ToSectionHeader.GetItemAt(ToIndex);
}
var rltv = Rltv;
foreach (var item in this)
{
IScreenItem pasteItem = null;
// remove from the from list.
if (item.CopyPasteCode == CopyPasteCode.Cut)
{
pasteItem = item.Cut();
}
// dup the item to copy.
if (item.CopyPasteCode == CopyPasteCode.Copy)
{
pasteItem = ScreenItemModel.Factory(item.ScreenItem);
pasteItem.AssignItemGuid();
}
// index of the insert relative to item.
toIndex = -1;
if (lastPasteItem != null)
{
toIndex = ToSectionHeader.Items.IndexOf(lastPasteItem);
}
// insert into ToList.
if (rltv == RelativePosition.After)
{
ToSectionHeader.InsertItemAfter(toIndex, pasteItem);
}
else if (rltv == RelativePosition.Begin)
{
ToSectionHeader.InsertItemBegin(pasteItem);
}
else if (rltv == RelativePosition.End)
{
ToSectionHeader.AddItem(pasteItem);
}
else if (rltv == RelativePosition.Before)
{
ToSectionHeader.InsertItemBefore(toIndex, pasteItem);
}
else
{
throw new Exception("invalid relative postion");
}
// clear the copy/paste marking on the screenItem.
if (this.IsGlobalList == true)
{
item.ScreenItem.CopyPasteCode = null;
}
// the last pasted item.
lastPasteItem = pasteItem;
// subsequent items are placed after the prior pasted item
rltv = RelativePosition.After;
}
// clear the list of pending actions.
this.Clear();
return(lastPasteItem);
}
